/**
  * Returns the URL that will be required for the user to hit to view the 
  * given document base name.
  *
  * @param boolean $short If true, will attempt to return a short version of the url
  * This might omit the version number if this is the default version.
  * @return string
  */
 public function Link($short = false)
 {
     return ltrim(Controller::join_links($this->entity->Link($short), $this->getRelativeLink()), '/');
 }